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Engine-Codes – GMC – B172E 2016 GMC Sierra

B172E 2016 GMC Sierra Code - Driver Seat Cushion Left Rear Haptic Movement

Quick Answer

The B172E diagnostic trouble code (DTC) on a 2016 GMC Sierra relates to the driver seat cushion left rear haptic movement. Common causes include Faulty sensor or actuator in the driver's seat cushion, Damaged wiring or connectors in the haptic feedback system, Issues with the control module responsible for managing the haptic system. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
B172E 2016 GMC Sierra indicates Driver Seat Cushion Left Rear Haptic Movement.
Common causes
Common causes include Faulty sensor or actuator in the driver's seat cushion, Damaged wiring or connectors in the haptic feedback system, Issues with the control module responsible for managing the haptic system.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code B172E 2016 GMC Sierra Description

The B172E diagnostic trouble code (DTC) on a 2016 GMC Sierra relates to the driver seat cushion left rear haptic movement. Haptic feedback systems are designed to provide tactile feedback to the driver, enhancing the driving experience and improving safety by alerting the driver to various conditions or events. In this case, the code specifically indicates an issue with the haptic movement in the driver's seat cushion, which could impact the driver's ability to receive important alerts or notifications while driving.

OBDII Code B172E 2016 GMC Sierra - Driver Seat Cushion Left Rear Haptic Movement
B172E 2016 GMC Sierra Code - Driver Seat Cushion Left Rear Haptic Movement

Common Causes of B172E 2016 GMC Sierra

  1. Faulty sensor or actuator in the driver's seat cushion.
  2. Damaged wiring or connectors in the haptic feedback system.
  3. Issues with the control module responsible for managing the haptic system.
  4. Wear and tear on the components of the haptic feedback system.
  5. Electrical issues such as a blown fuse or a short circuit.

Symptoms of B172E 2016 GMC Sierra

  1. Lack of tactile feedback in the driver's seat cushion.
  2. Inconsistent or incorrect feedback provided to the driver.
  3. Malfunctioning alerts or notifications through the haptic system.
  4. Illumination of the airbag or seatbelt warning light on the dashboard.

How to Fix B172E 2016 GMC Sierra

  1. Use a diagnostic tool to retrieve the specific code and identify the malfunctioning component.
  2. Inspect the sensor, actuator, wiring, and control module for any visible damage or signs of wear.
  3. Repair or replace the faulty component based on the diagnostic findings.
  4. Clear the DTC from the vehicle's computer system to reset the haptic feedback system.
  5. Test the haptic feedback system to ensure that the issue has been resolved and that proper feedback is being provided to the driver.

Cost to Fix B172E 2016 GMC Sierra

The cost of repairing a B172E DTC related to the driver seat cushion left rear haptic movement on a 2016 GMC Sierra can vary depending on the specific cause of the issue and the cost of parts and labor. In general, you can expect to pay anywhere from $200 to $500 for this repair, including the cost of diagnostic testing, parts, and labor. However, it's important to note that labor rates at auto repair shops can vary, with hourly rates typically ranging from $80 to $150. Additionally, the cost of parts can also fluctuate based on the specific component that needs to be replaced. To get a more accurate estimate, it's recommended to consult with a trusted mechanic or auto repair shop in your area.

What does this mean?

Tech Notes for B172E 2016 GMC Sierra

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B172E 2016 GMC Sierra Code

1. What does OBDII code B172E mean on a 2016 GMC Sierra?

Code B172E refers to an issue with the Driver Seat Cushion Left Rear Haptic Movement, indicating a malfunction in the vibration motor or circuit used for seat safety alerts.

2. What are the symptoms of code B172E in a 2016 GMC Sierra?

Common symptoms include the driver's seat not vibrating during safety alerts, such as lane departure or parking assist warnings.

3. What causes the B172E code to trigger in a GMC Sierra?

The code can be caused by a faulty haptic motor, wiring issues, poor electrical connections, or a malfunction in the control module.

4. Can I drive my 2016 GMC Sierra with the B172E code active?

Yes, the vehicle is still drivable, but the driver's seat vibration alerts may not function, potentially reducing the effectiveness of certain safety features.

5. How do I diagnose the B172E code on my GMC Sierra?

Start by checking the wiring and connections to the haptic motor under the driver's seat. Use a scan tool to confirm the code and perform further diagnostic tests.

6. How can I fix the B172E code in a 2016 GMC Sierra?

Repairs may include replacing the haptic motor, repairing damaged wiring, or addressing any loose or corroded electrical connections.

7. How much does it cost to repair the B172E code on a GMC Sierra?

Repair costs can vary, but replacing the haptic motor typically ranges from $150 to $400, depending on labor rates and parts availability.

8. Can I reset the B172E code without repairing the issue?

Clearing the code with a scan tool may temporarily reset it, but the underlying issue must be fixed to prevent the code from returning.

9. Is the B172E code a common issue in the 2016 GMC Sierra?

This code is not very common but can occur in vehicles with frequent use of safety alert systems or wear and tear on seat components.

10. Do I need a professional mechanic to fix the B172E code?

While minor issues like loose connections can be fixed by DIY enthusiasts, diagnosing and replacing the haptic motor may require a professional mechanic.

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